User's Manual DG100 IoT Gateway
Device Description
Next table shows signals of Serial1 and Serial2 connector.
Pin number
Signal
Description
1
RTS
RS232 output
2
-
not connected
3
GND
Ground
4
TXD
RS232 Output
5
RXD
RS232 Input
6
A (+)
RS485 (+)
7
B (-)
RS485 (-)
8
CTS
RS232 Input
3.1.2 USB Debug connector
USB Debug is
microAB
connector type serving as device type. It is used as a Linux "command
line" port on
ttymxc0
i.MX6ULL UART. It is based on FT231X USB to serial bridge controller. To
connect Debug port to a computer, a VCP driver must be installed on a computer. Any serial
terminal program can be used for debug with default communication parameters:
115200bps, 8N1 and no handshaking. Examples in this manual are referenced to Putty
terminal. It is an open source software and can be downloaded, free of charge, at
http://www.ftdichip.com/Drivers/VCP.htm
.
3.1.3 USB Device connector
USB Device is
microAB
connector type serving as device type. It is used for Linux Bootloader
recovery. For further information please contact Decode.
3.1.4 USB Host connector
USB Host is type A connector serving as host type. It is used as standard Linux Host USB with
500mA power supply capacity. It can handle USB Flash Drive sticks as well as USB serial
adapters for RS232 and RS485
3.1.5 Ethernet connector
The Ethernet port connector RJ45 supports the 10/100TBase standard. The connector has
light indications of activity (left LED) and network presence (right LED). This port allows
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